TY - RPRT TI - A dynamic causal modeling study on category effects: bottom-up or top-down mediation? AU - Andrea Mechelli AU - Cathy J Price AU - Uta Noppeney AU - Karl J Friston PY - 2003 DO - 10.1162/089892903770007317 UR - https://pubmed.ncbi.nlm.nih.gov/14628754/ ID - 14628754 ER -